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GNS - Gesellschaft für nachhaltige Stoffnutzung mbH Utilisation of biomass, residues and wastes 

Reduce, reuse, recycle – we write sustainability in capital letters!

We at GNS have specialised in the topics of recycling management, environmental technology and the use of biomass. Our work aims to develop technologies for reducing emissions, recycling waste and recovering valuable materials for our customers.

In our laboratory and pilot plant, we examine the most diverse natural and residual materials of our customers from Germany and abroad. We test all treatment steps in theory and practice and derive new process engineering solutions from them.

Processes and products for sustainable material utilisation – cooperation with partners

From scientific conception and technology development to engineering and project management, we take on the realisation of complex tasks related to the utilisation of biomass, residual materials and waste in cooperation with partner companies. In doing so, we are active throughout Germany as well as Europe.

Find out more about us and our work!

Problem solutions

Do you need process engineering for the utilisation of biomass and waste? Use our services in environmental consulting and engineering!

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Processes & Products

Our processes for biomass gasification and fermentation residue treatment are developed in-house and are ready to use. 

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Assessment & Expertise

We at GNS are your partner when it comes to assessments, tests and expert opinions on new processes.

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Studies & Concepts

We are your partner for carrying out scientific studies and preparing GHG balances.

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Laboratory & pilot plant

Whether waste analysis, fermentation test or fuel analysis - our laboratory is available to you individually according to your needs. Find out more here!

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Do you have any questions about our services?

We will be happy to answer your questions personally! Simply send us an email to or use our contact form. You are also welcome to contact us by telephone on 0345 - 55 83 754. We look forward to your inquiry!

Our awards and memberships

Investment security Through proven expertise for investors, planners & plant operators

Processes and process combinations often involve great risks for the investor. Comprehensive expertise is essential, especially at the level of process functionality. This is the only way that investments in the millions can generate the desired return. Our team has decades of experience in the field of environmental and process engineering.

We prepare independent expert reports, material and energy balances and supervise plant optimisation on-site. Many investors, planners and plant operators have already benefited from the knowledge of our process chemists and process engineers. Each process is carefully examined by us down to the smallest detail. This gives you greater investment security and you do not have to fear any unpleasant surprises.

Our current events & projects

Events & Publications

13.-18. Mai 2024Delegation and citizen trip as part of the Halle-Grenoble twin town partnership

An official delegation with the mayor of the city of Halle and members of the German-French Society DFG Halle visited the twin town of Grenoble from May 13 to 18, 2024, exchanged ideas on culture, business and environmental protection and had many interesting encounters. As GNS, we handed over a sustainably produced Magaverde wine box from Halle to the winemaker Thomas Finot from the Finot winery near Grenoble. The atmosphere was simply great and representatives of the city of Grenoble want to support German-French cooperation here and in other projects.

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New projects & project information

June 2024Student Internships

In our R&D projects, we offer student and professional internships in the field of sustainable products and processes in the bioeconomy. For example, we offer tasks in the area of ​​developing bio-based reaction mixtures for use in 3D printing. In laboratory experiments, you can sometimes experience surprisingly beautiful things, such as this spontaneous star-like folding of an oily mass. The aim is to transfer development work from the laboratory to the pilot plant scale.

We look forward to receiving your application at 

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